Intake-manifold heater



April 14, 1925.

W. F. LEVISQN INTAKE MANIFOLD HEATER Fill'eg Sept. 15, 1923 A Tron/vs r.

Fatentecl Apr, 14, i925.

unirse srATiEis WLLIAM s. Lawson, or CLEVELAND, OHIO.

NTnKE-nii NroLn HEATER.

application ala september 1-5, 192s. serial No. ceases.

To @ZZ @from vit 'may conce-rn." y

Be it known that I, Truman F. Ln'vrsor, a citizen `of the United States, "residing at Cleveland, in the oountyof Ciiylahoga and State of Ohio, have invented'certain new and useful Improvements in Intake-Manifold I-Ieaters,'of Which the following is a specification. y

This .invention is van intake manifold heater.,`having for an object to entirely enclose the, intake manifold whereby to linsulate the saine against the cold alir outside and to retain an unusual aniountjof heat Within 'the enclosure' for reasons which are obvious.

Another' lObjectis to provide a device of this character vherein the casing is so constructed as to be readily applicable to a manifold Without requiring fastening means` other than thos'econni'ionly carried by an engine, particularly of the type used in the Well known Ford automobile.

A further object is to provide a device of this character includinga highly efic'ient heat retaining material as a packing.

A still further object is to provide a de! vice of this character in which the parts may be stamped out and cheaply and easily formed.

It is likewise an object to provide a de- 'vice of thisA character including moans whereby an additional supply of heat may be received from the exhaust manifold.

Other objects will be in part obvious and in partpointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by persons skilled inthe art, I have in the accompanying illustrative drawings, and in the following` detailed description based thereon, set'out one possible embodiment of the saine. l

In these drawings:

Fig. 1 is a side elevation showing the application of my device.

if ig. 2 is an inner face view of the cover part of my device.

Fig. 3 is a similar view ofthe bas-c or inner part.

Fig. l is a section taken on the line @-4 of Fig. 1; and

Fig. 5 is a modification.

Having reference to the drawings throughout which similar characters of reference designate corresponding parts, this inven tion may be stated as comprising a casing which entirely encloses the intake manifold I from the point of attachment to the carburctcr C to the engine block E, to which it 'is secured ly the common bridgey bars l found on the average engine and particularly the type used in Ford automobiles.

rthis casing preferably consists of two parts, the 'inner or base part and the vouter part or cover `7, which as is obvious. snugly lits over the inner part G as shown in Figi Je. I-Vhile modilications in the shape may of course be resorted to, it is preferable to stamp each part to substantially simulate an ordinary intake manifold, thereby including the elbow 8 which, 'in the base portion t, is notched as at 9 in Fig. $3 so as to 4lit laround the pipe connection rto the carburetor. A neck 10 and the oppositely directed arms 11 having upwardly extended ends 12 are provided, the ends of the base part 6 being apertured at 12 so as to permit insertion of the usual nipple 14; as shown in Fig. 4.

In att-aching the device to an intake manifold, the manifold is removed, the openings in the base part are alincd with and arranged over the nipples 14, whereupon the manifold is positioned in said base with its outlet openings receiving the aforesaid nipples. The cover 7 is then slipped over the base part, snugly engaging the same and en tirely closing the manifold as heretofore' stated.

Naturally this structure alone would not greatly increase the retention of heat, and in consequence, I have sul'licicntly lined each section of the casing with a heat insulating material 15 consisting of a mixture of min@ eral Wool and asbestos. This material is unusually efficient in the retaining of heat in and about the intake manifold. The ma terial forms a hard refractory packing and entirely surrounds the manifold as shou'n in Fig. 4.

While the structure described has proven highly satisfactory during practical tests il', is probable that at times additioxnil heat may be desired, for which reason I have arranged upon the upper face of the base part of the casing, an upstanding tube 16 openingl into the casing and having its open upper end Contacting With the under side of the e.\:- hausted manifold M. A widened extren'iity 16 is hooked over the exhaust manifold whereby to prevent entry of foreign matter and incidently more rigidly support the y tube. As shown in Fig. 5, the cover 7 is notched at 17 so as to straddle the tube 16 for obvious reasons.

It is'to be understood that the packing or heat retaining material 15 will absorb heat modification as may fall within the scopeV of my claims, I consider within the spirit of my invention.

I claim: Y 1. An intake manifold beater comprising a casing entirely enclosing the manifold between the carbureter and the engine block,

a heat insulating material arranged between the manifold and casing and a connection between the upper portion of the casing and the exhaust manifold for directingv additional heat into the casing.

2. An intake manifold heater including a two-part Casing, one part of the casing comprising a substantially T-shaped body having its Vfront face open, and provided with an opening at each end of the T head for reception of a nipple in the charge inlet port, said part having aout-away portion to receive the manifold at its point of connection to a carbureter, and a second part substantially T- shaped and adapted to snugly ft over the first part; l

Y 3. An intake manifold heater including a two-part casing, one part of the casing comprising asubstantiallyV T-shaped body having its front face open, and provided with an opening at. each end of the T head for reception of a nipple in the charge inlet port, said part having a cut-away portion to receive the manifold at its point of connection to a carbureter, a second part, substantially T-shaped. and adapted to snugly fit over the first part, and an insulating material filling thespace between the manifold and the casing. I

4.- An intake manifold heater comprising inner and outer substantially T-shaped secand a heat insulating packing entirely filling the space between the sections and a manifold.

ture.

WILLIAllI Il. LEVISON.

In testimony whereof, I aixk my signa- 

